tantalumn.

Brit.

/ˈtantələm/,

/ˈtantl̩əm/, U.S.

/ˈtæn(t)ələm/

Forms: Also tantalium n.

Etymology: < tantal- (in Tantalus n.), with the ending -um (more usually -ium ), appropriate to metallic elements: compare aluminum and aluminium ; see quot. 1802.

Chemistry.

One of the rare metals, occurring in combination in various rare minerals, and in certain metallic ores; discovered in 1802 by Ekeberg in two minerals, one from Finland and the other from Sweden, which he named tantalite and yttrotantalite. It has been isolated as a solid greyish-white colour and metallic lustre, and has been used for the incandescent filament in electric lamps. Atomic weight 182; symbol Ta. Also attributive, as tantalum lamp, etc.

ΘΚΠ

the world > matter > chemistry > elements and compounds > metals > specific elements > tantalum > [noun]

tantalium1805

tantalum1809

Cf. 1802 Ekeberg in Kongl. Vetenskaps Acad. Handl. XXIII. 80 (tr.) This new recruit among the metals I call Tantalum, partly following the custom which favours names from Mythology, partly in allusion to its incapacity, when immersed in acid, to absorb any and be saturated.]

1809 Wollaston in Philos. Trans. (Royal Soc.) 99 246 The Swedish metal has retained the name of Tantalum given to it by M. Ekeberg.1815 W. Henry Elements Exper. Chem. (ed. 7) II. i. xix. 177 The oxide of tantalum, ignited with charcoal, melts and agglutinates.1906 Price Sheet Siemens Tantalum Lamps for continuous current... The Tantalum Lamp differs from the ordinary glow lamp in having a filament of the rare metal Tantalum instead of carbon.1907 Outlook 23 Mar. 378/1 Tantalum..is so hard and brittle that no ordinary metallurgical process was able to turn it into wire.

This entry has not yet been fully updated (first published 1910; most recently modified version published online March 2022).

单词	tantalum
释义	tantalumn. Brit. /ˈtantələm/, /ˈtantl̩əm/, U.S. /ˈtæn(t)ələm/ Forms: Also tantalium n. Etymology: < tantal- (in Tantalus n.), with the ending -um (more usually -ium ), appropriate to metallic elements: compare aluminum and aluminium ; see quot. 1802. Chemistry. One of the rare metals, occurring in combination in various rare minerals, and in certain metallic ores; discovered in 1802 by Ekeberg in two minerals, one from Finland and the other from Sweden, which he named tantalite and yttrotantalite. It has been isolated as a solid greyish-white colour and metallic lustre, and has been used for the incandescent filament in electric lamps. Atomic weight 182; symbol Ta. Also attributive, as tantalum lamp, etc. ΘΚΠ the world > matter > chemistry > elements and compounds > metals > specific elements > tantalum > [noun] tantalium1805 tantalum1809 Cf. 1802 Ekeberg in Kongl. Vetenskaps Acad. Handl. XXIII. 80 (tr.) This new recruit among the metals I call Tantalum, partly following the custom which favours names from Mythology, partly in allusion to its incapacity, when immersed in acid, to absorb any and be saturated.] 1809 Wollaston in Philos. Trans. (Royal Soc.) 99 246 The Swedish metal has retained the name of Tantalum given to it by M. Ekeberg.1815 W. Henry Elements Exper. Chem. (ed. 7) II. i. xix. 177 The oxide of tantalum, ignited with charcoal, melts and agglutinates.1906 Price Sheet Siemens Tantalum Lamps for continuous current... The Tantalum Lamp differs from the ordinary glow lamp in having a filament of the rare metal Tantalum instead of carbon.1907 Outlook 23 Mar. 378/1 Tantalum..is so hard and brittle that no ordinary metallurgical process was able to turn it into wire. This entry has not yet been fully updated (first published 1910; most recently modified version published online March 2022). < n.1809
随便看	θ110049 θ11005 θ110050 θ110051 θ110052 θ110053 θ110054 θ110055 θ110056 θ110057 θ110058 θ110059 θ11006 θ110060 θ110061 θ110062 θ110063 θ110064 θ110065 θ110066 θ110067 θ110068 θ110069 θ11007 θ110070